Serial Communications 75
9
Serial Communications
What this chapter contains
This chapter gives specific details on how to use Modbus RTU as the communication
protocol of the ACS260. Below you will find register mapping, telegram structure,
and connection details.
ACS260 drives support Modbus RTU communication, allowing a network of drives to
be controlled and monitored by any Modbus RTU capable PLC or control system.
The drive is always a Slave to an external Modbus RTU Master. This docu-ment
describes the registers and functions available.Modbus RTU
Modbus RTU Communications
Introduction
The ACS260 can be connected to a Modbus RTU network via the RJ45 connector or
the control terminal strip.
RJ45 Connector Configuration
Connection details are shown in section
RJ45 Data Connection Pin Configuration
.
Protocol
Modbus RTU
Error check
CRC
Baud rate
9600bps, 19200bps, 38400bps, 57600bps, 115200bps (default)
Data format
1 start bit, 8 data bits, 1 stop bits, no parity.
Physical signal
RS 485 (2-wire)
User interface
RJ45
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Summary of Contents for ACS260-04 Series
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